Trask TM-1021RC Assault Charge High-Flow Air Cleaner Reverse Cut for Harley-Davidson

The Trask Assault Charge High-Flow Air Cleaner features a distinctive reverse cut finish and transparent plexiglass outer cover that showcases the inner workings of your intake system. Rated as one of the highest flowing air cleaner kits on the market by independent testing, this performance upgrade delivers approximately 8 horsepower gains over stock while improving fuel efficiency.

Premium Construction and Features:

• CNC-machined billet aluminum backing plate with reverse cut finish
• Durable clear LEXAN plexiglass outer cover for aggressive styling
• Hidden integrated breather recirculation system (returns crankcase pressure to throttle body)
• Snap-in velocity stack included for optimized airflow
• Dyno developed and tested for proven performance
• Made in the U.S.A.

This kit recirculates head pressure back into the throttle body similar to stock Harley-Davidson air cleaners. For external venting, an optional external breather kit (TM-1020-11 for Twin Cam or TM-1023-11-B for M8) is available separately. An optional 58mm velocity stack upgrade (part #1010-2218) is also available for increased airflow.

Note: Not legal for sale or use in California on pollution-controlled motor vehicles.